Clutch device for automatic transmission
A technology for clutch devices and automatic transmissions, applied in fluid-driven clutches, non-mechanical-driven clutches, clutches, etc., to reduce weight, improve reliability and performance, and reduce manufacturing costs
Inactive Publication Date: 2016-08-10
HYUNDAI MOTOR CO LTD
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Problems solved by technology
[0013] However, in the non-operating state, some operating oil remains in the operating hydraulic pressure chamber 13 through the sealing member 25, so that the clutch piston 11 is released by the centrifugal hydraulic pressure of the operating oil remaining in the operating hydraulic pressure chamber 13 in the non-operating state. Move towards the balancing piston 19, thus causing a failure where the plate 5 and disc 9 are in contact
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[0032] Reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be appreciated that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments but also various alternatives, modifications, equivalents and other alternatives, modifications, equivalents and others, which may be included within the spirit and scope of the invention as defined by the appended claims. implementation plan.
[0033] Such as figure 2 with 3As shown, the clutch device for an automatic transmission includes a retainer 53, a plurality of plates 55 and a plurality of discs 59, the retainer 53 is connected to an input shaft 51, and the input shaft 51 is provided in a housing (not shown) i...
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A clutch device for an automatic transmission that can reduce the number of parts, weight and manufacturing cost. When the clutch is not working, that is, when the working oil is not supplied to the working hydraulic chamber, the centrifugal hydraulic pressure caused by the working oil will not be generated in the working hydraulic chamber, so that there will be no failure of the clutch piston to move to the spring seat, and there is no need to balance the hydraulic chamber and balance piston. The clutch device for an automatic transmission may include: a working hydraulic pressure supply hole formed at a boss portion of the retainer to connect with a working hydraulic pressure chamber formed between the retainer and the clutch piston; a sealing member provided at the In the sealing groove formed in the clutch piston, a gap is formed between the retainer and the sealing member when the clutch is not in operation, that is, when the working oil is not supplied to the working hydraulic chamber, and when the clutch is in operation, that is, the working oil is supplied to When working the hydraulic chamber, the sealing groove and the retainer are brought into close contact, so that the working hydraulic chamber is kept hermetically sealed.
Description
[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2010-0094802 filed on Sep. 29, 2010, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to a clutch device for an automatic transmission, and more particularly to a clutch device for an automatic transmission capable of preventing clutch pistons from being Fault. Background technique [0004] In general, an automatic transmission is a device that automatically outputs gear ratios in multiple steps according to the opening amount of a throttle valve with respect to the speed of a running vehicle, and includes a planetary gear set, a clutch of a brake system, and friction elements and a hydraulic control system, the planetary gear set implements multiple shift steps (shift steps), the clutches and friction elements of the brake system are activated by selectively ...
Claims
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IPC IPC(8): F16D25/06
CPCF16D25/0638F16D25/12F16D2048/0212F16D2300/08
Inventor 尹圣恩
Owner HYUNDAI MOTOR CO LTD